The ruling Bharatiya Janata Party dismissed the demand, while hitting out at the Left Front for "character assassination".

"Monoj Kanti Deb must be sacked and be arrested for touching the woman minister in an extremely indecent manner on the stage from where Prime Minister Narendra Modi, Chief Minister Biplab Kumar Deb and others addressed the public gathering," Left Front convener Bijan Dhar told the media.

He said that it appeared publicly on various social media that Deb put his hand on the waist of Social Welfare and Social Education Minister Santana Chakma, a young tribal leader.

"The male minister has publicly harmed the modesty, sanctity and dignity of the lone woman minister of Tripura at a public platform where the Prime Minister, the Chief Minister and other important personalities were present."

Dhar, who is also a central committee member of the Communist Party of India-Marxist (CPI-M), claimed that when many young and middle-aged women are being raped, murdered and kidnapped after the BJP-led government came to power in Tripura 11 months ago, the latest incident on a public platform is "extremely reprehensible and needs punishment".

Some tribal-based parties are also trying to organise agitations soon to demand the resignation and arrest of the minister.

Contacted for his response, Deb, who holds the Food, Youth Affairs and Sports portfolios, told IANS over phone from his home town Kamalpur in northern Tripura that he has no comments on this issue.

BJP spokesman Nabendu Bhattacharjee, however, said that the Left Front, after raking up non-issues against the BJP government, has now "started character assassination of BJP ministers on false and non-issue matters".

"The woman minister has never made any statement and complaint on the issue raised by the Left parties. Why are the Left parties doing this dirty politics?" he asked.